Tianchang City, Anhui Province, enterprises apply for "contract-abiding and credit-abiding units" to provide qualification documents. What exactly does it mean? Trademark? Tax voucher? Import and export? enterprise qualification certificate includes: business license, organization code certificate, tax registration certificate, business license, and relevant documents for engaging in the industry: prepare a completed contract, and the documents for your company to apply for qualification. I am engaged in the construction industry, which may be a little different from yours. The unit that abides by the contract and pays attention to credit mainly checks the documents and labor and whether there is any economic dispute. When you apply, you will be given a document, which will clearly state what information to prepare.